Coating installation and corresponding coating method

ABSTRACT

The disclosure relates to a painting installation for painting components with a paint, in particular for painting motor vehicle body components, with a paint booth and an application device, in particular a print head, arranged in the paint booth, for applying the paint to the component located inside the paint booth, the application device operating essentially without overspray, so that the paint applied by the application device essentially completely on the component to be coated without overspray deposits. The disclosure provides that no paint separation is arranged below the first paint booth.

CROSS-REFERENCE TO RELATED APPLICATIONS

This application is a national stage of, and claims priority to, PatentCooperation Treaty Application No. PCT/EP2017/081105, filed on Dec. 1,2017, which application claims priority to German Application No. DE 102016 014 953.1, filed on Dec. 14, 2016, which applications are herebyincorporated herein by reference in their entireties.

BACKGROUND

The disclosure concerns a painting installation for the painting ofcomponents with a paint, in particular for the painting of car bodycomponents. Furthermore, the disclosure concerns a correspondingpainting process.

In modern painting installations for the painting of car bodycomponents, atomizers (e.g. rotary atomizers, air atomizers, airmixatomizers, airless atomizers, etc.) are usually used as applicationdevices, which emit a spray of the paint to be applied. A disadvantageof these well-known atomizers is the fact that only part of the appliedpaint deposits on the surface of the vehicle body components to becoated, while the rest of the applied paint has to be disposed of asso-called overspray or is deposited on other areas of the component tobe coated where no paint is to be deposited. For this purpose, aso-called paint separation system is located under the actual paintbooth, which removes the unwanted overspray from the downward flowingbooth air.

FIG. 1 shows a schematic cross-sectional view through a conventionalpainting installation with a paint booth 1 on an upper floor 2 and apaint separation 3 on a lower floor 4. The construction of the paintinginstallation with the two floors 2, 4 one above the other requires asteel construction 5 or alternatively a concrete ceiling with a cut-outto lift the paint booth above the level of the paint separation 3, sothat the air flowing downwards from the paint booth 1 can enter thepaint separation 3 through the grid floor, as schematically indicated bythe arrows. In paint booth 1, a conveyor 6 runs at right angles to thedrawing plane, with the conveyor 6 conveying the vehicle body componentsto be painted through the painting installation at right angles to thedrawing plane. Multi-axis painting robots 8 are arranged on both sidesof the conveyor 6, each of which guides a rotary atomizer 9 as anapplication device. An example of the design and construction of thepaint separation 3 is described in DE 20 2006 021 158 U1. It should alsobe mentioned that the steel structure 5 rests on a concrete foundation10.

A main disadvantage of this well-known structure of a paintinginstallation is the fact that paint separation 3 is necessary at all,since the paint separation 3 requires water, chemicals, stone flourand/or cardboard filters.

Another disadvantage of this well-known structure of a paintinginstallation is the fact that the steel structure 5 is required tosupport the paint booth 1 and to position it above paint separation 3.

With regard to the technical background of the disclosure, reference isalso made to DE 10 2010 019 612 A1, DE 197 31 829 A1, DE 602 12 523 T2,DE 94 22 327 U1, DE 10 2013 002 412 A1, DE 196 30 290 A1, DE 41 15 111A1 and DE 196 06 716 C1.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 a cross-sectional view through a conventional paintinginstallation with a paint separation under the paint booth,

FIG. 2A a cross-sectional view through a paint booth according to thedisclosure,

FIG. 2B a modification of FIG. 2A,

FIG. 2C a modification of FIG. 2A,

FIG. 3 shows an example of a painting method according to the disclosurein the form of a flow chart,

FIG. 4 a modification of FIG. 3,

FIG. 5 a modification of FIG. 3 with a 3-wet process,

FIG. 6 another modification of a painting process according to thedisclosure,

FIG. 7 a modification of FIG. 6,

FIG. 8 another modification, and

FIG. 9 a schematic illustration of the painting of wrap-arounds aroundcomponent edges.

DETAILED DESCRIPTION

The disclosure is therefore based on the task of creating acorrespondingly improved painting installation and a correspondingpainting method.

The painting installation according to the disclosure first has at leastone first paint booth in which the components to be painted are paintedby an application device. Here, however, a rotary atomizer is not usedas the application device—as in the conventional structure of a paintinginstallation described at the beginning and shown in FIG. 1—but rather aprint head which essentially works without overspray, so that the paintapplied by the application device is deposited essentially completely onthe component to be coated without overspray.

Such printheads are known from the state of the art and are describedfor example in DE 10 2013 002 412 A1, U.S. Pat. No. 9,108,424 B2 and DE10 2010 019 612 A1. However, the term “printhead” used in the disclosureis to be understood generally and is not limited to the specificprintheads described in the above publications. Rather, the term “printhead” used in the context of the disclosure merely serves to distinguishbetween atomizers that emit a spray of the paint to be applied. Incontrast, a print head according to the disclosure emits a spatiallynarrowly limited jet of coating medium, which can be formed either as adroplet jet or as a jet of coating medium, which is continuous in thelongitudinal direction of the jet.

For the first time, the disclosure provides for the elimination of thetime-consuming separation of paint under the first paint booth. However,the disclosure does not only claim protection for painting installationswhere all paint booths are designed without an associated paintseparation. Rather, the disclosure also claims protection for a paintinginstallation with several paint booths, whereby at least one of thepaint booths works with an overspray-free print head as an applicationdevice and therefore has no associated paint separation, while the otherpaint booths can rather use conventional atomizers (e.g. rotaryatomizers) as an application device.

The combination of overspray-free print heads with overspray-generatingatomizers in a painting line is advantageous because, for example,so-called wrap-around component edges are difficult to paint with thecurrently known print heads. It therefore makes sense to continuepainting these areas (e.g. wrap-around component edges) withconventional atomizers (e.g. rotary atomizers). The wrap-around createsthe layer of paint produced during electrostatic painting, which isdeposited in the effective area of the field lines, which could not becoated without the effect of the field lines.

The overspray-free print heads, on the other hand, are preferably usedfor painting the outer surfaces of the components to be painted, whilethe overspray-generating atomizers can be used for painting the innersurfaces of the components to be painted or for painting theabove-mentioned wrap-arounds at the edges of the components.

In the painting installation according to the disclosure, the firstpaint booth with the overspray-free print heads can be arranged at floorlevel without the steel construction described above, especiallydirectly on a floor foundation. The renunciation of a paint separationthus also allows the combination of overspray-free print heads withoverspray-generating atomizers in a painting line to dispense with thesteel construction described above and thus enables the arrangement ofthe at least one overspray-free paint booth directly on a floorfoundation which is arranged at the level of the grating of the paintbooth with overspray separation. Accordingly, the conveyor for conveyingthe components to be painted can also be arranged at floor level and, inparticular, directly on the floor foundation, which is alsoadvantageous.

It should be mentioned here that the conveyor can run at floor levelover the entire length of the painting installation.

Alternatively, it is also possible that the first paint booth with theoverspray-free print heads as application device is arranged at floorlevel, whereas the other paint booths with the atomizers as applicationdevice are arranged in the conventional way above a paint separation. Inthis case, the components to be painted must be lowered or raised asthey pass through the painting line. The painting line can run on anupper assembly level, as is known from the state of the art. If thepaint booth with the overspray-free print heads is now arranged at floorlevel, the components to be painted must be discharged from the upperpaint line to the bottom and then returned to the top, which can be doneusing a lift, for example.

Alternatively, it is also possible for the paint booth with theoverspray-free print heads to be located to the side of the actual mainpainting line, which, however, also requires the components to bepainted to be introduced or discharged again.

In one example, the painting installation has an interior paint boothand an exterior paint booth, which are arranged one behind the otheralong the painting line and through which the components to be paintedpass one after the other. In the interior paint booth, the innersurfaces of the components to be painted are painted. In the exteriorpaint booth, on the other hand, the exterior surfaces of the componentsto be painted are painted. The aforementioned wrap-around componentedges are then painted either in the interior paint booth or in theexterior paint booth, so that these paint booths have an extendedpainting scope.

It should also be mentioned that the painting line preferably has acertain cycle time with which the components to be painted are coated.The cycle time of the paint booth with the overspray-free print heads isthen preferably longer than the cycle time of the main painting line,for example by 10%, 20%, 50%, 100%, 200%, 300% or 500%. Alternatively,it is also possible that the cycle time of the paint booth with theoverspray-free print heads is equal to or less than the cycle time ofthe main spray line.

In a preferred example of the disclosure, in the paint booth withoverspray-free print heads, i.e. without paint separation, only rarespecial paints or decorative paints are applied, whereas frequentstandard paints are painted with atomizers in the general painting line.In addition, primers, adhesion promoters or seam sealing (NAD:Nahtabdichtung) can also be applied in the paint booth with theoverspray-free print heads.

In one example, the painting installation has the following paintingstations (e.g. paint booths) which are arranged one behind the otheralong a painting line so that the components to be painted are conveyedthrough the stations one after the other in a filling process:

A first filler station for the application of a filler layer in theinterior of the component and at the wrap around component edges,whereby the application in the first filler station takes place using anatomizer (e.g. rotary atomizer) and the wrap also extends to outersurfaces.

A second filler station for applying a filler layer to the outer surfaceof the component, the application in the second filler station using anoverspray-free applicator, in particular with a print head.

A first drying station for drying the filler layer on the component.

A first base coat station for applying a first base coat layer to theinner surface of the component to be coated and around the edges of thecomponent at the wrap around, the application in the first base coatstation using an atomizer which emits a spray jet and the wrap-aroundalso extends to outer surfaces.

A second base coat station for applying the first base coat layer to theouter surface of the component to be coated, the application beingcarried out in the second base coat layer with an overspray-freeapplicator.

A third base coat station for applying a second base coat layer to theouter surface of the component to be painted, the application beingcarried out in the third base coat station by an overspray-freeapplicator or by an atomizer.

A second drying station for intermediate drying of the first base coatlayer and the second base coat layer.

A first clear coat station for the application of a clear coat layer inthe interior of the component and at the wrap-around component edges,the application in the first clear coat station being carried out by anatomizer which emits a spray mist of the clear coat and the wrap-aroundalso extends to outer surfaces.

A second clear coat station for applying a clear coat layer to the outersurface of the component to be coated, the application being carried outin the second clear coat station by an overspray-free applicator, inparticular by a print head.

A third drying station for drying the clear coat layer.

In another example, a fillerless process is used. Instead of the fillerapplication described above, in the first two stations a precoat or aso-called BC0=BC zero (a base coat applied before the actual first basecoat, which can be done using an overspray-free print head) isoptionally used.

In a further example, a so-called “3-wet process” is provided. A filleris optionally applied in a first station, which can be done by means ofa conventional atomizer. It should be mentioned here that a wrap-aroundis required for all paint layers. The remaining steps then correspond tothe steps described above with the exception of the 3-wet process.

In a variant of the disclosure, it is provided to first apply a firstbase coat layer instead of the filler. A second base coat can thenoptionally be applied as a top coat and optionally with a metalliceffect. Finally, a clear coat can be applied. This, too, is preferably aprimerless coating process.

The following process steps are provided in a further example of afillerless painting process:

Application of a precoat with a filler function,

Application of a first base coat as top coat,

Application of a second base coat as top coat,

Application of a clear coat.

Furthermore, the painting installation according to the disclosure isvery suitable for decorative painting. A base coat can first be appliedto the component to be painted, which can be done using a conventionalatomizer. The desired decor (e.g. graphic) can then be applied to thecomponent using an overspray-free application device. The decor is thenprotected with a clear coat layer.

Furthermore, the paint booth without paint separation comprises an airduct with a supply air duct and an exhaust air duct. The supply air ductcan be realised as a supply air ceiling, while the exhaust air ductingcan be designed as an exhaust air floor. Alternatively, the exhaust airduct can have exhaust air ducts on the floor, e.g. next to the body,under the body or on the cabin wall. However, the supply air could alsocome from ducts on the ceiling. The supply and exhaust air is alsonecessary without paint separation, as paint is still being applied tothe car. For example, the solvents still have to be removed and thepaint has to evaporate.

With reference to the figures, FIG. 2A shows a cross-sectional view of apaint booth 1 according to the disclosure, partially identical with theconventional paint booth 1 shown in FIG. 1, so that reference is made tothe above description to avoid repetition, using the same referencemarks for corresponding details.

A feature of this design example is that print heads 11, which areguided by the painting robots 8, are used as the application deviceinstead of the rotary atomizers 9. The print heads 11, however, do notemit a spray of the paint to be applied, but a narrowly confined jet ofcoating agent and are therefore essentially free of overspray. Thisoffers the advantage that the paint separation 3 can be dispensed with.Rather, there is only one exhaust air duct 12 below the paint booth 1,through which the downward air flow in the paint booth 1 can bedischarged.

This renunciation of the paint separation 3, which is possible accordingto the disclosure, again makes it possible to dispense with the steelconstruction 5, so that the paint booth 1 can be mounted almost at floorlevel.

FIG. 2B shows another modification, so that to avoid repetitions,reference is made again to the above description, using the samereference symbols for corresponding details.

A special feature of this example is that the conveyor 6 for conveyingthe motor vehicle body components 7 is arranged directly on the concretefoundation 10′.

The painting installation according to the disclosure therefore only hasto have a single floor, since no separate floor is required for thepaint separation 3. This in turn allows the painting installation to beinstalled in relatively low halls. However, this only applies ifoverspray-free application equipment is used exclusively.

FIG. 2C shows a further modification so that the above description isreferred to again in order to avoid repetitions, whereby the samereference symbols are used for corresponding details.

FIG. 2C, for example, shows a modification according to the disclosurein which an overspray-free paint booth 1′ is connected to the paintbooth 1 with the paint separation 3 (overspray separation). The concretefoundation 10′ of the overspray-free paint booth 1′ is arranged at thesame height as the grating of the paint booth 1 with the paintseparation 3 (overspray separation).

FIG. 3 shows a flow chart to illustrate an example of a painting processaccording to the disclosure with a filler.

In a first step, S1, a filler is applied in the conventional way bymeans of a atomizer to the inner surfaces of the vehicle body componentsto be painted and around the edges of the component.

In a further step, S2, a filler is then applied to the outer surfaces ofthe vehicle body components to be painted using an overspray-free printhead.

In the next step, S3, the vehicle body components are then dried.

A step S4 then provides for a first base coat layer to be applied to theinner surfaces of the vehicle body components and around the edges ofthe component by means of an atomizer.

In a further step, S5, a first base coat layer is applied to the outersurfaces of the vehicle body components using an overspray-free printhead.

Step S6 then involves applying a second base coat layer to the outersurfaces of the vehicle body component using an overspray-free printhead.

In a step S7, the vehicle body components are then dried.

A step S8 then provides for a clear coat to be applied to the innersurfaces and around the edges of the component by an atomizer.

In a further step, S9, a clear coat is then applied to the outersurfaces of the vehicle body components using an overspray-free printhead.

In one step S10, the vehicle body components are then finally dried.

In a modification of this example, the entire painting line runs throughall the painting cabins on an upper floor, so that there is nodifference in height between the painting cabins with the atomizers andthe painting cabins with the overspray-free print heads. The paintbooths with the overspray-free print heads can then also have a steel orconcrete construction so that these paint booths are at the same heightlevel as the other paint booths with the overspray-generating atomizers.The paint booths with the overspray-free print heads can also beinstalled on solid false ceilings and/or without recesses or basements.

In another modification of the disclosure, the paint booths with theoverspray-free print heads are lowered, since they do not require paintseparation. In this case, it is necessary to overcome the difference inheight, which is done by means of a discharge A or an infeed E. Thisdischarge A or the infeed E from the elevated painting line or into theelevated painting line can be carried out, for example, by means of alift.

FIG. 4 shows a modification of the example according to FIG. 3, so thatto avoid repetitions, reference is made to the above description, usingthe same reference signs for corresponding details.

A feature of this example is that it is a primerless painting process.In step S1, therefore, no filler is applied, but a precoat or a BC0,which can be done using a print head. Furthermore, in step S2, eitherevaporation or intermediate drying takes place.

Otherwise, this painting process essentially corresponds to the paintingprocess described above and shown in FIG. 3.

FIG. 5 shows a further modification, which in turn partially correspondsto the examples given in FIGS. 3 and 4, so that reference is made to theabove description in order to avoid repetitions, whereby the samereference signs are used for corresponding details.

A feature of this example is that it is a so-called 3-wet process. Inthe first step, a filler is optionally applied inside and on thewrap-around by means of a atomizer.

In the second step, S2, a filler is then applied to the outer surfacesof the vehicle body components, which can be done using anoverspray-free print head.

The further procedural steps again essentially correspond to theprocedural steps described above, so that reference is made to the abovedescription in this regard.

FIG. 6 shows another simple example. In the first step S1, a first basecoat layer is applied instead of a filler, i.e. the base coat layer alsohas a filler function. In a second step, S2, a second base coat layer isapplied, which can also have a metallic effect. Finally, a clear coatlayer is applied in step S3.

FIG. 7 shows another example of a coating process based on thedisclosure. In a first step S1, a precoat with a filler function isapplied. A first base coat layer is then applied in step S2 and a secondbase coat layer in step S3. Finally, a clear coat layer is applied instep S4.

In the example shown in FIG. 8, a conventional paint structure withfiller and base coat is first applied using an atomizer. In one step S2,a decor is then applied, which can be done using an overspray-free printhead. Then a clear coat layer is applied.

FIG. 9 shows a simplified and schematic cross-sectional view through acomponent edge 13 of a component, such as a car body component. Thecomponent edge 30 is flanged and sealed with a flange seam seal 14. Theouter surfaces 15 of the motor vehicle body component are coated with apaint layer 21 by an overspray-free print head 16, while the innersurfaces 17 of the component are coated with a paint layer 20 by aconventional atomizer 18. In addition, the component edge 13 is coatedwith the paint layer 19, which is also applied by the atomizer 18, bythe electrostatic wrap-around.

The coating of the wrap-around area and the component edge 13 with theatomizer 18 instead of the print head 16 is advantageous, since thecoating of extremely strongly curved surfaces with a very small radiusof curvature with the print heads 16 is so far only very badly possible.

The disclosure is not limited to the preferred examples described above.Rather, a large number of variants and modifications are possible whichalso make use of the idea of the disclosure and therefore fall withinthe scope of protection.

1.-18. (canceled)
 19. Painting installation for painting components witha paint, with a) at least one first paint booth, b) an applicationdevice arranged in the first paint booth for applying the paint to thecomponent located inside the paint booth, the application deviceoperating essentially without overspray, so that the paint applied bythe application device deposits essentially completely on the componentto be coated without overspray, c) wherein no paint separation isarranged below the first paint booth.
 20. Painting installationaccording to claim 19, wherein a) the painting installation additionallyhas at least one second paint booth with at least oneoverspray-generating atomizer as application device, b) the first paintbooth with the overspray-free application device is preferably designedfor coating outer surfaces of the components to be coated, c) the secondpaint booth with the overspray-generating atomizer is designed forcoating inner surfaces of the components to be coated.
 21. Paintinginstallation according to claim 20, wherein the first paint booth isarranged laterally next to the second paint booth.
 22. Paintinginstallation according to claim 19, wherein a) the painting installationhas a floor foundation at floor level, the paint booth without the paintseparation being arranged essentially at the floor level, and b) thefirst paint booth is arranged directly on the floor foundation, withouta floor construction which raises the paint booth above the floorheight, and c) the painting installation has a conveyor which conveysthe components to be painted along a conveying path through the firstpaint booth, the conveyor being arranged at floor level, and d) theconveyor extends at floor level over the entire length of the paintinginstallation.
 23. Painting installation according to claim 19, furthercomprising a) a floor structure with a lower mounting level and an uppermounting level, b) a painting line running on the upper mounting levelof the floor structure, c) a discharge for discharging the components tobe painted from the raised painting line at the upper mounting levelinto the first paint booth at the floor level, and d) an infeed forinfeeding the components to be painted from the first paint booth at thefloor level into the raised painting line on the upper mounting level.24. Painting installation according to claim 19, wherein a) the paintinginstallation has a painting line with a plurality of successive paintingstations, b) the components to be painted are conveyed by a conveyoralong the painting line through the painting stations and are coated inthe painting stations.
 25. Painting installation according to claim 24,wherein a) the first paint booth without a paint separation is arrangedoutside the painting line, b) the components to be painted aredischarged from the painting line by discharge means into the firstpaint booth without the paint separation means, and c) the components tobe painted are introduced from the first paint booth without a paintseparation into the painting line.
 26. Painting installation accordingto claim 24, wherein the first paint booth without a paint separation isarranged in the painting line.
 27. Painting installation according toclaim 19, wherein a) external surfaces of the components to be paintedare painted with the overspray-free application device, b) innersurfaces of the components to be painted are painted with an atomizerwhich applies a spray mist of the paint, and c) wraps around componentedges of the components to be painted are painted with an atomizer whichapplies a spray mist of the paint.
 28. Painting installation accordingto claim 27, wherein a) inner surfaces of the components to be paintedare painted in an interior paint booth, b) outer surfaces of thecomponents to be painted are painted in an exterior paint booth, and c)the wraps around the component edges of the components to be painted arepainted in the interior paint booth or in the exterior paint booth. 29.Painting installation according to claim 19, wherein a) the paintingline has a specific first cycle time with which the components to bepainted are coated, and b) the first paint booth without the separationhas a specific second cycle time with which the components to be paintedare coated, and
 30. Painting installation according to claim 29, whereinthe second cycle time is at least 10% greater than the first cycle time.31. Painting installation according to claim 29, wherein the secondcycle time is equal to the first cycle time.
 32. Painting installationaccording to claim 19, wherein a) in the first paint booth without thepaint separation only rare special paintwork is painted, whereasfrequent standard paintwork is painted in the painting line, and b) atleast one of primer, adhesion promoter and seam sealings is applied inthe first paint booth without the paint separation.
 33. Paintinginstallation according to claim 19, further comprising the followingstations which are arranged one behind the other along a painting lineso that the components to be painted are conveyed successively throughthe stations: a) a first filler station for the application of a fillerlayer in the interior of the component and at the wrap-around aroundcomponent edges, wherein the application in the first filler station iseffected by means of an atomizer which delivers a spray jet of thefiller, b) a second filler station for applying a filler layer to theouter surface of the component, the application in the second fillerstation being effected by means of an overspray-free applicator, c) afirst drying station for drying the filler layer on the component, d) afirst base coat station for applying a first base coat layer to theinner surface of the component to be painted and at the wrap-aroundaround component edges, the application in the first base coat stationbeing effected by means of an atomizer which emits a spray jet, e) asecond base coat station for applying the first base coat layer to theouter surface of the component to be coated, the application in thesecond base coat station being effected by means of an overspray-freeapplicator, f) a third base coat station for applying a second base coatlayer to the outer surface of the component to be coated, theapplication in the third base coat station being effected by means of anoverspray-free applicator or by means of an atomizer, g) a second dryingstation for intermediate drying of the first base coat layer and thesecond base coat layer, h) a first clear coat station for applying aclear coat layer in the interior of the component and at the wrap-aroundaround component edges, the application in the first clear coat stationbeing effected by means of an atomizer which delivers a spray jet of theclear coat, i) a second clear coat station for applying a clear coatlayer to the outer surface of the component to be coated, theapplication in the second clear coat station being effected by means ofan overspray-free applicator, and j) a third drying station for dryingthe clear coat.
 34. Painting installation according to claim 19, furthercomprising the following stations which are arranged one behind theother along a painting line so that the components to be painted areconveyed successively through the stations: a) optionally a pre-coatstation for applying a pre-coat layer to the component, the applicationin the second base coat station being effected by means of anoverspray-free applicator, b) a first drying station for drying orevaporating the component, c) a first base coat station for applying afirst base coat layer to the inner surface of the component to be coatedand at the wrap-around around component edges, the application in thefirst base coat station being effected by means of an atomizer whichemits a spray jet, d) a second base coat station for applying the firstbase coat layer to the outer surface of the component to be coated, theapplication in the second base coat station being effected by means ofan overspray-free applicator, e) a third base coat station for applyinga second base coat layer to the outer surface of the component to becoated, the application in the third base coat station being effected bymeans of an overspray-free applicator or by means of an atomizer, f) asecond drying station for intermediate drying of the first base coatlayer and the second base coat layer, g) a first clear coat station forapplying a clear coat layer in the interior of the component and at thewrap-around around component edges, the application in the first clearcoat station being effected by means of an atomizer which delivers aspray jet of the clear coat, h) a second clear coat station for applyinga clear coat layer to the outer surface of the component to be coated,the application in the second clear coat station taking place by meansof an overspray-free applicator, and i) a third drying station fordrying the clear coat.
 35. Painting installation according to claim 19,further comprising the following stations which are arranged one behindthe other along a painting line so that the components to be painted areconveyed successively through the stations: a) a first filler stationfor the application of a filler layer in the interior of the componentand at the wrap-around around component edges, wherein the applicationin the first filler station is effected by means of an atomizer whichdelivers a spray jet of the filler, b) a second filler station forapplying a filler layer to the outer surface of the component, theapplication in the second filler station being effected by means of anoverspray-free applicator, c) a first base coat station for applying afirst base coat layer to the inner surface of the component to be coatedand at the wrap-around around component edges, the application in thefirst base coat station being effected by means of an atomizer whichemits a spray jet, d) a second base coat station for applying the firstbase coat layer to the outer surface of the component to be coated, theapplication in the second base coat station being effected by means ofan overspray-free applicator, e) a third base coat station for applyinga second base coat layer to the outer surface of the component to becoated, the application in the third base coat station being effected bymeans of an overspray-free applicator or by means of an atomizer, f)optionally a first drying station for intermediate drying of the firstbase coat layer and the second base coat layer, g) a first clear coatstation for applying a clear coat layer in the interior of the componentand at the wrap-around around component edges, the application in thefirst clear coat station being effected by means of an atomizer whichdelivers a spray jet of the clear coat, h) a second clear coatstationfor applying a clear coat layer to the outer surface of the component tobe coated, the application in the second clear coatstation beingeffected by means of an overspray-free applicator, and i) a seconddrying station for drying the clear coat layer.
 36. Paintinginstallation according to claim 19, further comprising a primerlesspainting process without a primer with the following process steps inthe following order: a) Application of a first base coat layer insteadof the filler, b) Optional application of a second base coat layer astop coat and optional metallic effect, c) Optional application of ametallic paint layer, d) application of a clear coat layer.
 37. Paintinginstallation conforming to claim 19, further comprising a primerlesspainting process without a primer with the following process steps inthe following order: a) Application of a precoat with a filler function,b) Application of a first base coat layer as top coat, c) Application ofa second base coat layer as top coat, d) application of a layer of clearcoat layer.
 38. Painting installation according to claim 19, furthercomprising the following process steps: a) application of a paint havingat least one base coat layer and optionally a clear coat layer to thecomponent to be painted by means of an atomizer which applies a spraymist of the paint, and b) applying a decoration to the component to bepainted by an overspray-free application device, and c) optionalapplication of a clear coat layer.